The smart rotor technology is the present hotspot in the helicopter world.

智能旋翼技术是目前直升机界的研究热点。

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The Mi-26 is the largest in the world serial Soviet transport helicopter.

米-26 是世界上最大的前苏联系列运输直升机。

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The city has the highest rate of private helicopter use in the world — a literal sign of what heights people will go to in order to avoid the realities of the world below.

该城私人直升机拥有率在全世界数一数二——算是富人们为躲避底下惨不忍睹的现实世界而做掩耳盗铃之举，一点也不为过。

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This puts it on the tail of Sikorsky's experimental X2, which has set an unofficial world record for a helicopter by flying at just over 460kph.

ECONOMIST: Chop, chop

At that time, he was lowered by helicopter to the roof of the World Trade Center to help clear an area for helicopters to land, Andersen said.

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When not otherwise clambering up the world's tallest sailing ships, the award-winning photographer can be found hanging from a helicopter in a harness traveling 160 kilometers per-hour in hot pursuit of Powerboat World Champion competitors.

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